【Auto On/Off Cycle Timer】The aquarium lights for fish tank built in timer and 3 timing durations, it will come on and go off at the same time every day and light up for 6 hours,10 hours or 12 hours.No longer worry about your aquarium when busy with work, traveling or sleeping.
【3 MODES FISH LIGHT Switchable】The aquarium light has three kinds of switchable lights: Blue, White, Blue-White.Submersible LED Aquarium Light with switchable 3 modes is better for aquarium aquatic plant,freshwater fish and marine fish and so on.Press power button, the first -White, the second -Blue, the third blue and white, and the fourth full off.
【10 Levels Adjustable Light Brightness】The brightness and switches of the white and blue LEDs can be defined from 10% to 100% individually or simultaneously.Press the “W” key to adjust the white light and press the “B” key to adjust the blue light.10 gears incremental cycle.

【 Mini Size 】Perfect mini size 3inchx1inch,fits for most of small tank filters such as low water filter(search B07TS62D7J on Amazon),hang on back filter, top filter box and so on.
【 Application 】Updated version with timer(3h,6h,12h,24h),this water clean light help to clean the green water,such as Fish tank,swimming pool,pond, shoes,dog house clean and so on.
【 Lamp feature】254nm wavelength,3watt 3inch x 1.0inch,110 voltage input,50-60Hz,Power Plug with timer Switch on/off.